Flute Duet Alto Flute - Level 3 - Digital Download SKU: A0.1373620 By Amy Heritage. By Antonin Dvorak. Arranged by Amy Heritage. 19th Century,Chamber,Classical,Romantic Period. Score. 10 pages. Amy Heritage #958008. Published by Amy Heritage (A0.1373620). The delightful character and expressive melodies of Dvorak's Humoresque are especially charming in this arrangement for flute duet or flute and alto flute.